clean_metadata_value: Clean metadata value
In auth0/rauth0: Tools for data manipulation in Auth0

Delete any value/types associated with a metadata key, useful for changing a metadata value type.

1	clean_metadata_value(metadata_key, source = "dwh")

`metadata_key`	The key of the metadata value, e.g. "last_processed_fit_score" could be the last processed time of the fit score
`source`	if ‘dwh', it’ll use the DWH, if you specify anything else, it'll use it as a filename to use as a config database

## Not run: 

set_metadata_value('my_cool_value', 'hello')
set_metadata_value('my_cool_value', 123) #ERROR!
clean_metadata_value('my_cool_value')
set_metadata_value('my_cool_value', 123)


## End(Not run)